Question

When 142 is added to a number the result is 64 more than 3 times the number find the number

Answer 1

Hey Mate,

Let us take the unknown number to be "x". Then,

x + 142 - 64 = 3x

=> x + 78 = 3x

=> 78 = 3x - x

=> 78 = 2x

=> 78/2 = x

=> x = 39

Therefore, the number is 39.

Hope it Helps!

Answer 2

Let the number be x

When 142 added, the number is x + 142

64 more than times te number = 3x + 64


According to the question,

x + 142 = 3x + 64

➾ 3x - x = 142 - 64

➾ 2x = 78

➾ x = $\dfrac{78}{2}$

➾ x = 39



∴ The number is 39


Verification :-

x + 142 = 3x + 64

➾ 3x - x = 142 - 64

➾ 2x = 78

➾ 2 × 39 = 78

➾ 78 = 78

∴ LHS = RHS ✔✔